Does leaf pubescence of wheat affect host selection and life table parameters of Sipha maydis (Hemiptera: Aphididae)?
- سال انتشار: 1391
- محل انتشار: Journal of Crop Protection، دوره: 2، شماره: 1
- کد COI اختصاصی: JR_JCP-2-1_009
- زبان مقاله: انگلیسی
- تعداد مشاهده: 162
نویسندگان
Department of Plant Protection, College of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
Department of Plant Protection, College of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
Department of Plant Protection, College of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
چکیده
The influence of leaf pubescence of three wheat cultivars (Pishtaz, Ghuds and Falat) on preference and biological parameters of Sipha maydis (Passerini) was investigated under greenhouse conditions (۲۵ ± ۲ °C, ۷۰ ± ۱۰% RH and ۱۴: ۱۰ h (L: D) photoperiod). The results showed that Pishtaz had a greater density of trichomes compared to the other cultivars. In the preference test with whole plant, the number of aphids on Pishtaz was significantly greater than that on other cultivars at ۴۸ hrs after infestation. Similarly, in the preference test on leaves, the numbers of attracted aphids per leaf was highest on Pishtaz. In the life table study, there was no significant difference of intrinsic rate of natural increase (rm) among the three studied cultivars but it was highest on Pishtaz (۰.۱۸۷ /day). Aphids’ net reproductive rate, doubling time, mean generation time and finite rate of increases did not show significant differences between the tested cultivars. According to our results, leaf surface pubescence of wheat is not an effective resistance mechanism against S. maydis.کلیدواژه ها
Wheat cultivars, Sipha maydis, Plant resistance, : trichomesاطلاعات بیشتر در مورد COI
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